(10 ILCS 91/10.23)
    Sec. 10.23. Representative District No. 23. Representative District No. 23 is comprised of:
 
District: 23
Cook County
    Tract: 640600
        Blockgroup: 1
            Block 1019
        Blockgroup: 2
            Block 2029
    Tract: 813301
    Tract: 813302
    Tract: 813400
    Tract: 813500
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
        Blockgroup: 2
            Block 2009
            Block 2012
            Block 2013
            Block 2014
            Block 2015
            Block 2016
            Block 2017
            Block 2018
            Block 2019
            Block 2020
            Block 2021
        Blockgroup: 3
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3020
            Block 3021
        Blockgroup: 5
    Tract: 813600
    Tract: 813701
        Blockgroup: 1
            Block 1000
            Block 1005
            Block 1006
            Block 1007
            Block 1012
            Block 1016
            Block 1017
            Block 1018
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2014
            Block 2015
    Tract: 813702
    Tract: 813801
        Blockgroup: 2
    Tract: 813802
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2007
            Block 2008
            Block 2009
            Block 2010
            Block 2011
            Block 2012
            Block 2013
            Block 2015
        Blockgroup: 3
    Tract: 813900
        Blockgroup: 1
        Blockgroup: 2
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3007
            Block 3008
            Block 3011
        Blockgroup: 4
            Block 4000
            Block 4001
            Block 4002
            Block 4003
            Block 4004
        Blockgroup: 5
    Tract: 814000
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1019
            Block 1020
            Block 1021
            Block 1022
            Block 1023
        Blockgroup: 2
        Blockgroup: 3
            Block 3003
            Block 3004
            Block 3005
            Block 3006
            Block 3007
            Block 3008
            Block 3009
            Block 3010
            Block 3011
            Block 3012
    Tract: 814100
        Blockgroup: 1
        Blockgroup: 2
        Blockgroup: 3
            Block 3001
            Block 3002
            Block 3003
            Block 3004
            Block 3005
            Block 3006
            Block 3007
            Block 3008
            Block 3009
    Tract: 814600
        Blockgroup: 1
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2007
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3004
            Block 3005
            Block 3006
        Blockgroup: 4
            Block 4011
            Block 4012
            Block 4013
            Block 4014
            Block 4015
            Block 4016
            Block 4017
            Block 4018
        Blockgroup: 5
            Block 5004
            Block 5005
            Block 5006
            Block 5009
            Block 5010
            Block 5011
            Block 5012
            Block 5013
    Tract: 814700
        Blockgroup: 1
            Block 1006
            Block 1007
            Block 1008
            Block 1009
        Blockgroup: 2
            Block 2000
            Block 2011
            Block 2012
            Block 2013
            Block 2014
            Block 2015
    Tract: 814800
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2019
            Block 2020
            Block 2021
            Block 2022
            Block 2023
            Block 2024
            Block 2025
            Block 2026
            Block 2035
            Block 2036
            Block 2037
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3005
            Block 3006
            Block 3007
            Block 3008
            Block 3009
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3014
            Block 3015
            Block 3016
            Block 3017
            Block 3018
            Block 3019
            Block 3020
            Block 3021
            Block 3022
        Blockgroup: 4
            Block 4000
            Block 4001
            Block 4002
            Block 4005
            Block 4015
            Block 4016
        Blockgroup: 5
            Block 5010
            Block 5011
            Block 5012
            Block 5013
            Block 5024
            Block 5025
            Block 5026
            Block 5027
            Block 5028
    Tract: 814900
        Blockgroup: 3
            Block 3002
            Block 3003
            Block 3004
            Block 3005
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3014
            Block 3015
            Block 3016
            Block 3017
            Block 3021
            Block 3022
            Block 3023
            Block 3024
            Block 3025
            Block 3026
            Block 3027
            Block 3028
        Blockgroup: 4
            Block 4002
            Block 4003
            Block 4004
            Block 4005
    Tract: 815000
        Blockgroup: 3
            Block 3010
            Block 3011
            Block 3017
            Block 3018
            Block 3019
            Block 3020
    Tract: 815300
        Blockgroup: 2
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2007
            Block 2008
            Block 2009
            Block 2010
            Block 2011
            Block 2012
            Block 2013
            Block 2014
            Block 2015
            Block 2016
            Block 2017
            Block 2018
            Block 2019
            Block 2020
            Block 2021
            Block 2026
    Tract: 815400
        Blockgroup: 4
            Block 4001
            Block 4002
            Block 4003
            Block 4004
    Tract: 815701
        Blockgroup: 1
        Blockgroup: 2
        Blockgroup: 3
        Blockgroup: 4
            Block 4000
            Block 4001
            Block 4002
            Block 4003
    Tract: 815702
        Blockgroup: 1
        Blockgroup: 5
            Block 5000
            Block 5001
            Block 5002
            Block 5003
            Block 5004
            Block 5005
            Block 5009
            Block 5010
            Block 5011
            Block 5012
            Block 5013
            Block 5014
            Block 5015
            Block 5016
            Block 5017
            Block 5018
            Block 5019
            Block 5020
            Block 5021
            Block 5025
    Tract: 815800
        Blockgroup: 1
            Block 1007
            Block 1009
            Block 1010
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1019
            Block 1020
            Block 1021
            Block 1022
            Block 1023
            Block 1024
            Block 1025
            Block 1026
            Block 1027
            Block 1028
            Block 1029
            Block 1030
            Block 1031
            Block 1032
            Block 1033
            Block 1034
            Block 1035
            Block 1036
            Block 1037
            Block 1038
            Block 1097
            Block 1098
    Tract: 818700
        Blockgroup: 3
        Blockgroup: 4
            Block 4010
            Block 4011
            Block 4012
            Block 4013
    Tract: 818800
        Blockgroup: 1
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1019
            Block 1024
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2019
            Block 2020
            Block 2021
        Blockgroup: 3
            Block 3016
            Block 3017
            Block 3018
            Block 3019
            Block 3020
            Block 3021
            Block 3022
            Block 3023
            Block 3024
            Block 3025
            Block 3026
        Blockgroup: 4
            Block 4000
            Block 4001
            Block 4002
            Block 4003
            Block 4004
            Block 4005
            Block 4006
            Block 4007
            Block 4008
            Block 4010
            Block 4011
            Block 4012
            Block 4013
            Block 4014
            Block 4015
            Block 4016
            Block 4017
            Block 4018
            Block 4019
            Block 4020
            Block 4021
            Block 4022
            Block 4023
            Block 4024
            Block 4025
            Block 4026
            Block 4027
            Block 4028
            Block 4029
        Blockgroup: 5
        Blockgroup: 6
            Block 6005
            Block 6006
            Block 6031
            Block 6032
            Block 6033
            Block 6041
    Tract: 818900
        Blockgroup: 1
            Block 1009
            Block 1010
            Block 1011
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1019
            Block 1020
            Block 1021
        Blockgroup: 2
            Block 2000
            Block 2010
            Block 2011
        Blockgroup: 3
            Block 3020
    Tract: 819300
        Blockgroup: 3
            Block 3002
            Block 3004
            Block 3005
            Block 3006
            Block 3007
            Block 3008
            Block 3009
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3014
            Block 3017
            Block 3018
            Block 3019
            Block 3020
            Block 3021
            Block 3022
            Block 3023
            Block 3024
            Block 3025
            Block 3026
            Block 3027
            Block 3028
            Block 3031
            Block 3032
            Block 3033
    Tract: 819400
        Blockgroup: 1
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
        Blockgroup: 2
        Blockgroup: 3
            Block 3009
            Block 3010
            Block 3011
            Block 3012
            Block 3013
        Blockgroup: 4
            Block 4003
            Block 4004
            Block 4005
            Block 4006
            Block 4007
            Block 4008
            Block 4009
            Block 4010
            Block 4011
            Block 4012
            Block 4013
            Block 4014
            Block 4015
            Block 4016
            Block 4017
            Block 4018
            Block 4019
            Block 4020
            Block 4021
            Block 4022
            Block 4023
            Block 4024
            Block 4025
            Block 4026
            Block 4027
            Block 4028
            Block 4029
            Block 4030
            Block 4031
        Blockgroup: 5
    Tract: 819500
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1019
            Block 1020
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3004
            Block 3005
            Block 3006
            Block 3017
        Blockgroup: 4
    Tract: 819600
        Blockgroup: 1
            Block 1000
            Block 1015
        Blockgroup: 2
            Block 2000
            Block 2015
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3004
            Block 3020
        Blockgroup: 4
            Block 4000
            Block 4001
            Block 4013
            Block 4014
    Tract: 820103
        Blockgroup: 1
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2007
            Block 2008
            Block 2009
        Blockgroup: 3
            Block 3004
            Block 3027
    Tract: 820104
        Blockgroup: 1
    Tract: 820202
        Blockgroup: 1
            Block 1026
            Block 1028
            Block 1029
            Block 1032
            Block 1036
            Block 1037
            Block 1038
            Block 1039
            Block 1040
            Block 1041
            Block 1042
            Block 1113
            Block 1114
            Block 1115
            Block 1116
            Block 1117
            Block 1118
            Block 1119
            Block 1120
            Block 1121
            Block 1122
            Block 1123
            Block 1124
            Block 1125
            Block 1126
            Block 1127
            Block 1128
            Block 1129
            Block 1130
            Block 1131
            Block 1132
            Block 1134
            Block 1135
            Block 1139
            Block 1140
            Block 1141
            Block 1142
            Block 1145
            Block 1149
            Block 1150
            Block 1151
            Block 1153
            Block 1154
            Block 1156
            Block 1157
            Block 1158
            Block 1159
            Block 1201
            Block 1202
            Block 1203
            Block 1205
            Block 1208
            Block 1210
            Block 1212
            Block 1214
            Block 1216
            Block 1218
            Block 1219
            Block 1221
            Block 1222
            Block 1223
            Block 1224
            Block 1225
            Block 1226
            Block 1227
            Block 1228
            Block 1229
            Block 1230
            Block 1231
            Block 1232
            Block 1233
            Block 1234
            Block 1235
            Block 1250
    Tract: 820501
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1033
            Block 1034
            Block 1035
            Block 1036
            Block 1037
            Block 1038
            Block 1039
            Block 1040
        Blockgroup: 2
        Blockgroup: 3
        Blockgroup: 4
        Blockgroup: 5
            Block 5000
            Block 5001
            Block 5002
            Block 5003
    Tract: 820502
        Blockgroup: 1
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1019
            Block 1020
            Block 1021
            Block 1022
            Block 1023
            Block 1024
            Block 1025
            Block 1026
            Block 1027
            Block 1028
            Block 1029
            Block 1030
            Block 1031
            Block 1032
            Block 1033
            Block 1034
            Block 1035
            Block 1036
            Block 1037
            Block 1038
            Block 1039
            Block 1040
        Blockgroup: 2
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3004
            Block 3005
            Block 3006
            Block 3007
            Block 3008
            Block 3009
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3014
            Block 3015
            Block 3016
    Tract: 820603
        Blockgroup: 1
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1027
            Block 1028
            Block 1044
            Block 1045
            Block 1046
            Block 1047
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2007
            Block 2008
            Block 2009
            Block 2010
            Block 2011
            Block 2012
            Block 2013
            Block 2014
            Block 2015
            Block 2016
            Block 2017
            Block 2018
            Block 2019
            Block 2020
            Block 2021
            Block 2022
            Block 2023
            Block 2024
            Block 2026
            Block 2027
            Block 2028
            Block 2029
        Blockgroup: 3
    Tract: 820604
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1015
            Block 1016
            Block 1017
            Block 1018
            Block 1019
            Block 1020
            Block 1021
            Block 1022
            Block 1023
            Block 1024
            Block 1025
            Block 1026
            Block 1027
        Blockgroup: 2
    Tract: 820605
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
    Tract: 820606
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2007
            Block 2018
            Block 2020
            Block 2021
            Block 2022
            Block 2025
            Block 2026
            Block 2027
            Block 2028
            Block 2029
            Block 2030
            Block 2031
            Block 2032
            Block 2033
            Block 2034
            Block 2035
            Block 2045
    Tract: 820901
        Blockgroup: 1
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1011
            Block 1012
            Block 1013
            Block 1014
            Block 1019
            Block 1020
            Block 1027
            Block 1028
            Block 1029
            Block 1030
            Block 1037
            Block 1038
            Block 1039
            Block 1040
            Block 1041
            Block 1042
            Block 1043
            Block 1044
            Block 1045
            Block 1046
            Block 1047
            Block 1048
            Block 1049
            Block 1050
            Block 1051
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            Block 1055
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            Block 1078
            Block 1079
            Block 1080
            Block 1081
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            Block 1099
            Block 1100
            Block 1101
            Block 1102
            Block 1103
            Block 1104
            Block 1105
        Blockgroup: 2
        Blockgroup: 3
        Blockgroup: 4
    Tract: 820902
        Blockgroup: 3
            Block 3006
            Block 3007
            Block 3008
            Block 3009
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3014
            Block 3015
            Block 3016
            Block 3017
            Block 3018
            Block 3019
            Block 3020
            Block 3021
            Block 3022
            Block 3024
            Block 3025
            Block 3031
        Blockgroup: 4
    Tract: 821001
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1013
            Block 1014
            Block 1015
            Block 1017
            Block 1018
            Block 1019
            Block 1022
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2004
            Block 2005
            Block 2006
            Block 2009
            Block 2010
            Block 2011
            Block 2012
            Block 2013
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3004
            Block 3005
            Block 3006
            Block 3007
            Block 3008
            Block 3009
            Block 3010
            Block 3011
            Block 3012
            Block 3013
            Block 3014
            Block 3015
            Block 3016
            Block 3017
            Block 3018
            Block 3019
            Block 3020
            Block 3021
            Block 3022
            Block 3023
            Block 3024
            Block 3025
            Block 3026
            Block 3027
            Block 3028
            Block 3029
            Block 3032
    Tract: 821002
        Blockgroup: 1
        Blockgroup: 2
            Block 2000
            Block 2001
            Block 2002
            Block 2003
            Block 2012
            Block 2013
            Block 2014
            Block 2015
            Block 2016
            Block 2017
            Block 2018
        Blockgroup: 3
            Block 3000
            Block 3001
            Block 3002
            Block 3003
            Block 3012
    Tract: 821101
        Blockgroup: 1
            Block 1000
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
    Tract: 821102
        Blockgroup: 1
            Block 1001
            Block 1002
            Block 1003
            Block 1004
            Block 1005
            Block 1006
            Block 1007
            Block 1008
            Block 1009
            Block 1010
            Block 1013
            Block 1014
(Source: P.A. 97-6, eff. 6-3-11.)